Engine-lathe.



No. 680,l67. Paiented Aug. 6, 190L- C. W. NITTERMIER.

ENGINE LATHE.

(Application filed Nov. 8, 19/00.)

( No Model.)

2 Sheets8heet l.

.N/ M W W in: co m No. 680,167. Patented Aug. 6, I90l. Y

c. w. NITTERAUEB.

ENGINE LATHE.

(Application filed Nov, 3, 1900.) (No Model.) 2 Sheets-Sheet 2.

' 0m. WM'ZZr/"auen GWW UNITED STATES PATENT. OFFICE.

CHARLES IV. NITTERAUER, OF DULUTH, MINNESOTA.

ENGINE-LATHE.

SPECIFICATION forming'part of Letters Patent N 0. 680,167, dated August 6 1901.

Application filed November 3, 1900. Serial No. 35,394. (No model.)

To all whom, it may concern.-

Be it known that I, CHARLES W. NITTER- AUER, a citizen of the United States, residingat Duluth, in the county of St. Louis and State of Minnesota, have invented certain new and useful Improvements in Engine- Lathes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to engine-lathes, and has for its object the providing of means for turning, boring, and cutting threads in a taper at any desired angle Without making the machine less convenient for usual straight turning, boring, or cutting work.

It consists in providing a horizontally radially swinging head-stock mounted on a radi-' ally-fixed base upon a bed or frame of the usual or any convenient design. 7

It also comprises means whereby said headstock may be swung from a center and the gears and belt-cones and other driving parts operated without disarranging the several shafts thereof orsubjecting them to unusual wear or strain.

It also consists of certain other novel con structions, combinations, and arrangements of parts, as will be hereinafter more particularly set forth and described.

In the accompanying drawings, forming a part of this specification, Figure 1 is a hori-, zontal plan View of my said invention with the upper belt-cone and back gear mechanism in the head-stock removed. Fig. 2 is a longitudinal side elevation with interior parts dotted. Fig. 3 is a longitudinal vertical section through the head-stock. Fig. 4 is a transverse section throngh the said head-stock. Fig. 5 is an end elevation of the head-stock and base.

In carrying out my invention in a practical manner there is placed upon a bed or frame 1 of any convenient design a head-stock base 2, forming part of my said invention, which base may be made integral with said frame, but is preferably formed of a separate piece and is longitudinally grooved in its lower face, as at 3 3, to receive the longitudinal inner V guide-rails 44 upon said bed or frame. Said base 2 is of a thickness sufficient to enable the head-stock 5 resting upon it to swing over the carriage-plate which travels upon the exterior longitudinal V guide-rails 6 6 upon said bed or frame 1. The head-stock base 2 is provided in its upper face with a circular slot 7, described from a point on the longitudinal central line of said plate and bed, which point is also preferably upon or near the transverse central line of said base 2. At the center of said circle is an aperture 8 through said base. The base-plate 2 is preferably wider at the outer end than at the inner end and is provided neareach end with segmental slots 9 9, described from the same radial point as said circular slot. Depending from the outer end of said bed or frame 1 is a central journalbox 10, in which is j ournaled a shaft 11, which also passes through the box end of said bed or frame 1 and extends inward to a point nearly below the central aperture 8 in said base 1. The extreme inner end of said shaft 11 carries a keyed beveled gear 12. Upon the outer end of said shaft 11 is journaled a slotted pendu- -lum-lever 13, and a belt wheel or cone 14 is keyed to said shaft, as also a straight gearwheel 15. From the lower face of said base 2 forward of the end of said bed or frame 1 also preferably depends a journal-box 16 to supportthe inner end of said shaft 11. Upon said base 1 mount a head-stock 5, forming in its peculiar construction part ofmy said invention. Said head-stock 5 is substantially hollow, but contains a vertical transverse division-wall 17 at apoint about midway between the center of said head-stock and its end, which division-wall forms itself or in connection with any suitable journal -'box mounted thereon the support for the inner end of a shaft 18, hereinafterdescribed. A horizontal web 19 also extends transversely across said head-stock 5 at the lower central 20, which registers with the central aperture Sin said head-stock base. Through the central apertures of said head-stock and basev extends a bushing or collar 21, supported by a horizontal flange 22 at the upper end and bearing upon the horizontal web 19 of said head-stock 5. The other end of said bushing 21 is externally threaded at 23 to receive a clamping-nut 24, which bushing forms the pivot of said head-stock. Through said bushedge thereof and is provided with an aperture 1 ing 21 and clamping-nut extends a vertical shaft 25, provided at each end with a keyed beveled gear, the lower gear 26 of which meshes with the bevel-gear 12. The upper gear 27 on said shaft meshes with a beveled gear 28 on inner end of shaft 18, hereinafter described. Extending from each side of said head-stock 5, near the rear end thereof and at the lower edge thereof, is a horizontal apertured lug 29, the aperture of which registers with the segmental slot 9 near the rear end of said base 2. Through said apertured lugs 29 and slot 9 I pass bolts 30 30, which may be loosened or tightened to enable said stock 5 to be swung or to hold it in any desired horizontal angle on the base 2. One or more apertures 31 also penetrate the front portion of said stock, registering with said front segmental slot 9 in the base 2, and through said front apertures or aperture and slot I pass one or more bolts 32, which may be loosened or tightened to enable said stock to be swung or to secure it at any desired horizontal angle on said base 2. Upon the lower side edges of said head-stock 5 I construct segmental lugs 33 33, which project into the circular inner slot in said base 2. The transverse division-wall 17 in said headstock is apertured, as at 34, to form a journalbearing, through which partition-wall 17 and through the rear end of said head-stock extends the shaft 18. Instead of the mere aperture 34 the division-wall17 maybe provided with a journal-box of ordinary construction to support the shaft 18. Upon the forward end of said shaft 18 is the beveled gear 28, which meshes with beveled gear 27 on vertical shaft 25. Upon that portion of shaft 18 which is between said division-wall 17 and the end of said stock 5 is keyed a vertical gear-wheel 35, and between said Wheel and the end of the head-stock 5 is journaled upon said shaft 18 a segmental rocking plate 36, the hub 37 of which extends through the end of said head-stock 5 and has keyed on its tern. Journaled in said rocking plate 36, near its outer edge, are two mes-hing gears 39, one of which is always in mesh with the feed and lead mechanism gear 3 5. The gears 39 are it is moved in one direction the outer gear 39 will be brought into mesh with the gear 60 on the lathe-spindle, and motion will be imparted to thegear 35 therefrom through both of the gears 3 When the plate 36 is rocked in the other direction, the inner gear 39, which meshes with the gear 35, will be broughtinto mesh also with the spindle-gear 60. Motion will thus be imparted to the gear 35 from gear directly through the inner gear 39 and of course in a reverse direction to the motion previously imparted through both gears. By this simple means the feed and lead mechanism can be reversed at will.

As is usual in lathe construction, the ends of my head-stock 5 extend above the sides dle. Q to my invention, it would be transmitted from so located on the rocking plate 36 that when and are apertured to receive the spindle 41, carryingthe usual belt-cone 42 and primary driving-gears and chucks, which may be of any suitable and convenient design. Said head-stock 5 also carries back gear mechanism 42 of any suitable or convenient construction. Upon the upper face of the front end of my said head-stock base 2 is marked an angle-indicator 43, and an indicating-point 44 for such indicator is formed or marked upon the front end of said head-stock 5.

The base or frame 1 is provided with the usual lead-scre'w45 and gear 46 thereon and with the usual feed-rod 47 and belt-cone 48 thereon. A belt 49 connects the cone 14 on shaft 11 with the cone 48 on the feed-rod 47. The idler-gear 50 is journaled on a bolt 51, extending through the main slot 52 in the shank of the pendulum-lever 13, which is journaled on shaft 11 immediately outside of the end of said bed 1. The head of the pendulum-lever 13 contains asegmental slot 53 for the passage of a set-screw or bolt 54, whereby said lever may be fixed at any suitable angle. Thus the gear 50 may be arranged to mesh with gear 15 and with the gear 46 on the end of the lead screw45 or may be disengaged from the lead-screw gear 46 by swinging the lever 13 or may be disengaged from both of said gearsby dropping the bolt 51, on

13, is novel and forms an important feature of the present invention.

With a lathe embodying my aid invention the head-stock 5 may, if desired, be swung one-quarter way around, (or at right angles to said frame,) so as to face a straight surface on a piece parallel to said bed or frame, but which is too large to swing over the bed of the lathe, and by using my said invention 1 can also cut a thread across the face of the same, as has been formerly accomplished only by using 'a peculiar style of chuck. outer end a reversing-lever 38- of usual pat- It will be observed that the-power would be usually transmitted to my lathe from overhead shafting by belt to the cone on the spin- Following then a new course peculiar the gear on said spindle through one or both 1 of the gears 39 on the rocking segment to gear 35 on shaft 18, thenceby means of beveled gear 28 on shaft 18 to beveled gear 27 on shaft 25, thence by shaft 25 and gear 26 to gear 12 on shaft 11,,tl1ence by shaft 11 and gear 15 to idler-wheel 50, journaled on a bolt passing through the pendulum-lever 13, and thence to gear 46 on end of lead-screw 45; also, as before outlined, until shaft 11 is reached, thence simultaneously through the belt-cone 14 on the shaft 11 and belt 49 to the belt-cone 48 on the feed-rod 47. It will be seen that by means of the central position of shaft 25 and gears 26 and 27 and their meshing with gears 12 and 28 the power will be transmitted without strain, whatever the angle of the head-stock may be, which is a prime feature of my said invention. nal-boxes and minor details may, if desired, occupy slightly altered positions, or said head-stock may be pivoted from either end instead of from the center by making only minor modifications, all within the scope of my said invention.

Having now described my invention, What I claim, and desire to protect by Letters Patent, is

1. A lathe comprising a frame or base, a head-stock pivoted thereon, shaftin g passing through the pivot-point and forming the pivot of the head-stock for transmitting motion from mechanism on one side of the head-stock to mechanism upon the other side thereof, without interfering with the pivotal motion of the head-stock, substantially as described.

2. In a lathe, the combination with a frame, of a stock and base mounted thereon and provided with guide-grooves in its upper surface, a head-stock centrally pivoted on the said base and having segmental ribs adapted to engage the grooves upon the said base, means passing through the pivotal point of the head-stock for communicating motion from mechanism above to mechanism below the same, and means for holding the headstock in its various positions on the base, substantially as described.

3. In a lathe, the combination with a suitable frame, a head-stock base mounted thereon,a head-stock pivoted upon said base,a shaft passing through the pivotal axis of the said head-stock, gearing connecting the shaft with the lathe-spindle, a gearing connecting the shaft with the lathe, feeding mechanism whereby the said train of gearing will not be interfered with, no matter what the position of the head-stock, substantially as described.

4. Inalathe, the combination with a frame, a head-stock base mounted thereon and provided with grooves adapted to engage longitudinal ribs upon the frame, a head-stock pivoted upon the stock-base, a shaft passing through the frame and base and into the head-.

stock for holding the same pivotally in position, a spindle carried by the head-stock, a counter-shaft mounted therein, gearing connecting the counter-shaft with the spindle, and gearing connecting the counter-shaft with the vertical pivotal shaft and gearing connecting the lower end of the vertical pivotal shaft with the feed mechanism of the lathe, the structure being such that the train of gearing will not be interfered with, no matter to what angle the head-stock may be turned, substantially as described.

5. In alathe, the combination with a frame, a head-stock base secured thereon and provided with an aperture, a head-stock pivotally mounted upon said base, a shaft passing through the aperture in the base, a supporting-collar also mounted in the aperture in the said base for holding the shaft in position therein, the said collar having a supporting In all cases the jourannular flange at its upper edge, a nut upon the lower end of the collar for holding the parts in position, and gearing connecting the shaft with the lathe -.spindle and with the lathe feed mechanism, substantially as described.

6. Inalathe, the combination with a frame, a head-stock base mounted thereon, a pivotal head-stock resting on the base, a spindle carried by the head-stock and having suitable gearing, a counter-shaft mounted in the headstock and having a gear-wheel keyed thereto, an oscillating plate loosely mounted on the said counter-shaft and having a sleeve extending outside the head-stock, a handle secured to the said sleeve for oscillating the plate, gears mounted upon the oscillating plate and meshing with each other, one of said gears also meshing with the gear upon the counter-shaft, the structure being such that by rocking the oscillating plate one or the other of the intermeshing gears carried thereby may be brought into engagement with actuating-gears upon the spindle, and means for transmitting motion from the countershaft through the pivotal point of the head= stock to the feed mechanism of the lathe, substantially as described.

7. In a lathe, the combination with a frame, a head-stock base mounted thereon, a pivotal head-stock mounted onthe base, shafting passing through the pivotal point of the headstock, gearing connecting the same with the lathe-spindle, a shaft mounted upon the frame and connected with the said gearing, a pendulum-lever loosely mounted upon the said frame -shaft, a gearwheel upon the frame-shaft, and-an adjustable gear-wheel carried by the pendulum-lever, a gear-wheel secured to the lead-screw of the lathe and arranged in the path of the gear carried by the pendulum-lever, the structure being such that by varying the position of the pendu-- lum-lever motion may be imparted from the frame-shaft to the lead-screw, substantially as described.

8. In a lathe, the combination with a frame,

of a pivotal head-stock mounted thereon,

shaftin g passing through the frame and headstock upon the line of its pivotal point, gearing connecting the shafting with the lathespindle, a shaft mounted on the frame, gearing connecting the shaft with the pivotal shafting, a pendulum-lever mounted loosely upon the frame-shaft, the said pendulum-lever having a longitudinal slot formed therein, an adjustable gearing mounted in the said slot, a gear-wheel upon the end of the frameshaft adapted to mesh therewith, and a gear upon the lead-screw of the lathe, also adapted to be brought into mesh therewith, a set screw adapted to engage a segmental slot formed in the pendulu m-lever for holding the lever in its adjusted positions, the structure being such that by adjusting the lever the gear which it carries may be brought into mesh with the gear upon the lead-screw, and

I by adjusting the said gear in the slot of the lever the gear may be brought into or out of mesh with the gear upon the frame-shaft, substantially as described.

9. Ina lathe, the combination with a suitable frame, a pivotally-mounted head-stock arranged thereon, and carrying a lathe, a

shaft passing through the pivotal point of the head-stock, shafting and gearing connecting the said pivotal shaft with the spindle, a shaft mounted in the said frame, gearing connecting the same with the pivotal shaft, the said shaft also being provided with a beltthe frame-shaft, substantially as described.

cone, a gear-Wheel connected with the said shaft, adjustable gearing for connecting the r 5 said gear-wheel with the lead-screw of the lathe, a feed-rod mounted in the said frame,

a cone secured to the feed-rod, and belting for connecting the feed-rod with the cone upon 20 In testimony whereof I hereunto affix my signature in presence of two Witnesses.

CHARLES WV. NITTERAUER. \Vitnesses:

J AMES T. WATSON, WILLIAM F. BAILEY. 

